I've stayed at the Rosa for years, and in just about every room (including the 4 bed suite). It is very simple w/o many amenities, but for the price is fantastic! I've never been one to like being caged in by a resort and love to adventure. With the hotel being 500 feet from the beach and accessable to just about everything Playa Del Carmen has to offer, I absolutely love it!
In the past few years a club went up right out front of the Rosa (not sure if it's still there this year), but it makes for a loud night, so if you're a light sleeper, you might not want to stay on the beach in Playa (because every block has a bar that plays loud music until 4am).
I've stayed here with my parents, girlfriend, and just friends in general and have never had any trouble with break-ins, bugs, or water issues.
If you're smart when you travel you lock up your valued belongings when you're not in your room and when you sleep and definitely lock your doors!More